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Two small speakers A and B are driven in step at 725 Hz by the same audio oscillator. These speakers both start out 4.50 m from the listener, but speaker A is slowly moved away.
a.) At what distance d will the sound from the speakers first produce destructive interference at the location of the listener? Express your answer in meters.
b.) If A keeps moving, at what distance d will the speakers next produce destructive interference at the listener? Express your answer in meters.
c.) After A starts moving away, at what distance will the speakers first produce constructive interference at the listener? Express your answer in meters.
At pH 6.00 and pE 2.10, what is the concentration of Fe2+ (mol/L) in equilibrium with Fe(OH)3?
the absorptions corresponding to other C-O or C-halogen single bond stretching vibrations are in the finger print region at significantly lower frequency.
Determine the KLa for oxygen for this new dispenser when it is operated 3.2 m below the liquid surface with the air flow rate of 7:08 × 10-3 m3/s.
A stock solution is prepared by adding 30 mL of 1.7 M NaNO2 to enough water to make 49 mL. How many moles of NO2- are in 35 mL of the stock solution
A solution is made from ethanol, C2H5OH, and water is 1.60 m in ethanol. How many grams of C2H5OH are contained per 230. g of water?
Calculate the concentrations of all species in a 0.100 M H3PO4 solution given the following Ka's: 7.5 X 10^-3 for H3PO4, 6.2 X 10^-8 for H2PO4-, and 4.8 X 10^-13 HPO4^2- Draw each of the structures.
If the volume of an unknown liquid is measured and found to be 6.510 L, what is the volume of the unknown liquid in milliliters?
A gas at a temperature of 100 degrees C occupies a volume of 165 mL. Assuming constant pressure, determine the volume at 20 degrees C. Show your work.
Calculate the potential of a hydrogen ( p= 1.02 atm) electrode in an aqueous solution of HBr (0.05 m ) at 298 K A) assuming ideal solute behavior. B) using the Deby- Huckel equation.
If the specific gravity of a sample of organic liquid is 0.878, what would be the volume of 2.54 kg of the sample in mL?
Determine the molarity of a solution prepared by dissolving 4.50 mol of NH4Cl in sufficient water to make 2.00 L of solution.
Problem- (a) Compute the radius r of an impurity atom that will just fit into an FCC octahedral site in terms of the atomic radius R of the host atom (without introducing lattice strains.
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